# US 12,447,489 B2 · Refillable fluid product dispenser > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,447,489 B2 - Document ID: US12447489B2 - Status: Granted - Kind: B2 - Application number: 18/014,061 - Filed: 2021-07-02 - Published: 2023-08-24 - Granted: 2025-10-21 - Earliest claimed: 2020-07-03 - Assignees: Aptar France SAS - Applicants: Aptar France SAS - Inventors: Xavier Brahim; Antoine Ailliot - Web page: https://patentgrep.com/patent/US12447489B2 ## CPC - B05B 11/0056: {with an additional opening for filling or refilling} - B05B 11/0039: {associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means} - B05B 11/1023: {having an outlet valve opened by deformation or displacement of the piston relative to its actuating stem} - B05B 11/1025: {a spring urging the outlet valve in its closed position (B05B11/1026 takes precedence)} - B05B 11/1074: {located outside pump chambers} - B05B 11/0044: {compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means (venting means for deformable containers B05B11/047)} - B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D) ## Abstract A refillable fluid product dispenser having a fluid product reservoir defining a neck and a filling port; a dispensing member, such as a pump, mounted on the neck of the fluid product reservoir for extracting the fluid product; a filling valve; a chamber separating the filling port from the filling valve. The chamber has a retention mechanism for retaining the fluid product inside the chamber. ## Claims ### Claim 1 A refillable fluid product dispenser comprising: a fluid product reservoir defining a neck and a filling port at a bottom portion of the fluid product reservoir, a dispensing member mounted on the neck of the fluid product reservoir for extracting the fluid product, a fluid product filling valve at the bottom portion of the fluid product reservoir above the filling port, the fluid product filling valve comprising a fixed insert and a moveable member that is axial movable relative to the fixed insert between a closed position in which the moveable member is seated on the fixed insert providing a fluid tight seal and an open position in which the moveable member is unseated from the fixed insert providing a passage for fluid through the fluid product filling valve, a fluid product chamber between the filling port and the filling valve, the fluid product chamber comprising an anti-drip retention device for retaining the fluid product inside the fluid product chamber downstream of the filling port, the anti-drip retention device configured to prevent fluid product from leaking out of the fluid product chamber from the filling port and comprising one of: an anti-drip valve that is normally closed and that opens during filling, a flexible bottom wall that deforms inwardly to reduce a volume of the fluid product chamber during filling and deforms outwardly to increase the volume of the fluid product chamber after filling, or a spongy material that retains fluid product. ### Claim 2 (depends on 1) The dispenser according to claim 1, wherein the fluid product filling valve is a hydraulic valve that opens under the action of the fluid product injected under pressure through the filling port and the chamber. ### Claim 3 (depends on 1) The dispenser according to claim 1, wherein the anti-drip valve comprises a slotted flexible membrane that opens under the action of the fluid product injected under pressure through the filling port and that remains closed and sealed in the non-operating state. ### Claim 4 (depends on 3) The dispenser according to claim 3, wherein the slotted flexible membrane rests in the non-operating state against the inlet. ### Claim 5 (depends on 1) The dispenser according to claim 1, wherein the anti-drip retention device is held in place trapped between a bottom of the fluid product reservoir and the fixed insert. ### Claim 6 (depends on 1) The dispenser according to claim 1, wherein the anti-drip retention device comprises the flexible bottom wall, and wherein the flexible bottom wall defines a variable volume between a maximum volume in the non-operating state and a minimum volume when a pressure is applied at the filling port, creating a suction effect of the fluid product towards an inside of the fluid product chamber, when this anti-drip device returns to the non-operating state. ### Claim 7 (depends on 1) The dispenser according to claim 1, wherein the filling port is an inlet duct that defines a volume that is less than a volume change of the fluid product chamber, so as to ensure the emptying of the inlet duct. ### Claim 8 (depends on 1) The dispenser according to claim 1, wherein the anti-drip retention device comprises the spongy material, and wherein the spongy material is expressed under the action of the fluid product injected under pressure into the chamber and that is impregnated with fluid product as soon as the pressure subsides in the chamber. ### Claim 9 (depends on 1) The dispenser according to claim 1, further comprising a vent valve. ### Claim 10 (depends on 1) The dispenser according to claim 1, wherein the dispensing member is a pump. ### Claim 11 (depends on 1) The dispenser according to claim 1, comprising the fluid product which is a liquid. ### Claim 12 (depends on 1) The dispenser according to claim 1, wherein the anti-drip device comprises the anti-drip valve and wherein the anti-drip valve comprises a slotted flexible membrane that opens under the action of the fluid product injected under pressure through the filling port and that remains closed and sealed in the non-operating state.